How to adapt the throttle valve in a car. Throttle learning

March 23, 2018 Lada.Online 226 737 76

Jerking when changing gears or when starting the car. In some cases, adapting the throttle valve zero and adapting the misfire diagnostic function will help solve these problems. The adaptation process does not require special equipment and can be done with your own hands.

Signs of throttle adaptation

The throttle valve in its modern form is one of the last components to undergo electronic modernization. Instead of mechanical rods, a compact electric motor is installed on it, which serves as an actuator.

The signal to it comes directly from the throttle sensor. Together, this system allows you to control the engine correctly, supplying the required volume of fuel mixture to the combustion chambers in a timely manner. There are several signs by which you should start adjusting the throttle position.

For example, when you suddenly release the gas pedal, the engine does not go to idle and stalls; the following can also happen:

Unstable engine operation at idle;
a significant “freezing” of revolutions around the 1.5 thousand mark;
drops in speed when gaining power;
the “CHECK ENGINE” indicator lights up on the dashboard;
difficult start at ;
lack of response when pressing the gas pedal.

Depending on the engine type, there may be a slight loss of power, for example with engines with a V8 configuration. Also, fuel consumption almost always increases. These signs appear especially often on cars with a mileage of 30 thousand km or more, equipped with turbocharging.

Self-cleansing procedure

If the damper is electronically actuated, then it is better to remove the negative terminal of the battery. Next, you can do everything according to simple instructions:

dismantle the air filter by unscrewing the pipe clamp;
disconnect all connectors of the throttle module and other pipes;
move the air filter receiver to the side so that it does not interfere, and begin cleaning the damper;
upon completion, reassemble the damper module in reverse order, checking that everything is in place;
After assembly, start the engine and check the idle speed.

In some cases, before you begin to adapt the throttle valve on a Toyota, Nissan or Skoda, it is necessary to remove the throttle itself, which allows you to completely clean the valve. To do this, you will need a 5 mm hexagon to unscrew the 4 fasteners. Removing the throttle should be done with great care, as there is a risk of damaging the gasket.

If, after cleaning the throttle body, increased idle speed is observed, it means that the damper needs to be adapted. What this is is further in the topic of the article.

Causes

The most common reason for an adaptation to be made is the consequences of throttle valve maintenance. As a result of operation, a large amount of deposits forms in this unit, therefore, after flushing, the position of the throttle valve changes, and the ECU continues to send signals about its condition until maintenance.

Over time, natural wear occurs on the resistive layer of the sensor potentiometer and the moving elements of the throttle valve; in this case, after adaptation, it will most often require replacement. It is necessary to conduct training if changes are made to the ECU settings (chip tuning), especially if operations have been performed to increase engine power.

The procedure is performed using special programs on computer equipment or without them (a strictly defined procedure, which will be discussed below) depending on the brand of car. Auto electricians must take into account the features of the model, year of manufacture, and type of ECU installed on the vehicle.

Need for maintenance

The prophylaxis procedure should not be carried out in the absence of obvious reasons. Before starting, you need to carefully evaluate the condition of the throttle valve. If there are no obvious signs of tar deposits and areas of coking, then the reason for unstable operation may lie elsewhere.

Also consider the mileage of the car. Experts recommend resorting to flushing no earlier than after 100 thousand km. But on some cars, for example, a Ford Focus, it may be necessary to flush it after 30 thousand kilometers.

You should know how to clean your throttle body to achieve the desired result. This requires a special carburetor cleaning solution, for example, Abro Carb & Choke Cleaner or similar products. The assembly must be dismantled; only in this case can the maximum effect be achieved, otherwise carbon deposits will remain inside the tubes. Disconnect all pipes from the throttle valve to gain good access to the inlet part of the assembly.

Remove carbon deposits delicately using a clean rag or soft brush. Do not use excessive force; you may damage the valve. The internal elements are coated with a thin layer of molybdenum, which novice car enthusiasts mistake for harmful deposits.

The consequences of zealous cleaning can be different: the moving part of the damper will begin to bite, or vice versa, in the closed position it will begin to let air through. In this case, it will not be possible to do without repairing the throttle valve.

Throttle body cleaning process

To carry out the work, you will need an aerosol carburetor cleaner. Many experienced car experts recommend using the ABRO Carb & Choke Cleaner brand. It is inexpensive - around 250-300 rubles. The can does a very good job of removing mud deposits and lasts a long time. Since the spray is quite toxic and can cause a chemical burn, you should wear rubber gloves during the procedure. You also need to stock up on dry, clean rags and cotton swabs. The tools you will need are a Phillips screwdriver and an angled Torx.

Sequence of actions for cleaning the throttle valve:

Remove the negative terminal from the battery.

Using a Phillips screwdriver, unscrew the five bolts and disconnect the crankcase ventilation hose.

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We remove the cover and remove the air filter (at the same time you can assess the condition of the “consumables”).

Having applied a fair amount of effort, we pull off the tray in which the filter was stored.

We examine the surface of the throttle valve and assess the degree of contamination.

To dismantle the assembly, the tube clamps need not be touched. First, we detach the wide air intake sleeve, which is located near the radiator grille.

We press the latches and release the two electrical connectors.

We tighten the four bolts with an angled Torx ratchet and remove the device.

Cover the resulting hole with a rag so that dirt does not get into the “engine”.
Then the cleaner comes into play: apply the solution to the surface and clean it with a rag. We open the damper and get into hard-to-reach places with the cleaning agent. To implement your plan, you can use cotton swabs. Don’t forget to also wash the gasket, or better yet, replace it with a new one.

As soon as the surface begins to shine with cleanliness, assemble the knot in the reverse order. An important condition is correct assembly without distortions. All parts must tightly fit the device body. To tighten the bolts, use a torque of 8 Nm.

Cleaning will take no more than an hour. After reassembly, you can check the operation of the car: for many owners of the Polo sedan, the root of all troubles lies precisely in the excessive neglect of the mechanism. It is possible that adaptation may not be necessary.

Examples of throttle valve adaptation on VAG and Lancer IX vehicles

In this video, they will tell you and show you how to adapt the damper for a VAG car.

Adaptation of remote sensing for Volkswagen Golf 4:

We warm up the engine to t=800C and turn off the car. Then we connect the USB-KKL cable to the diagnostic connector and, after turning on the ignition, launch the diagnostic program (VAG-COM 3.11).
We enter section 01-engine.
We poll the fault memory (02).
We erase detected faults (05).
After returning to the previous menu, enter the “adaptation-10” section.
On channel 00, press the “read” button.
Save the result and return to factory settings.
Enter the basic settings (04) and go to the measurement mode.
If the group value is 001, press “start”.
We wait 2-3 minutes, then close the program and disconnect the cable. Adaptation is complete.

Adaptation of remote sensing of Nissan cars with an electronic gas pedal:

Fully release the accelerator pedal.
Turn on the ignition for at least 2 seconds.
Turn off the ignition and wait at least 10 seconds.
Turn on the ignition for at least 2 seconds.
Turn off the ignition. The accelerator pedal adaptation procedure is completed.
We are adapting the throttle valve. The accelerator pedal is released.
Turn on the ignition and turn it off immediately. We wait at least 10 seconds. During this period of time, the damper moves.
We teach air supply at idle speed (XX).
Warm up the engine and gearbox to operating temperature.
We turn off all electrical equipment of the car.
We start the engine and bring it to operating temperature.
Turn off the ignition and wait at least 10 seconds.
Fully release the accelerator pedal.
Turn on the ignition and wait at least 3 seconds.
Within 5 seconds, press the accelerator pedal five times, then wait 7 seconds.
Pressing the accelerator pedal, hold it until the CHECK stops flashing and lights up constantly (about 20 seconds are required).
After the CHECK light comes on continuously, you must release the pedal within 3 seconds.
We start the engine to run at XX.
Press the pedal several times to check the stability of the XX.

Adaptation of remote sensing on VW Passat B5:

We recommend that you watch this video, it will show you how to adapt the damper for a Passat car.

Warm up the engine to operating temperature and turn off the car.
We turn on the ignition, but do not start the engine.
We connect the cable to the diagnostic connector and launch the program.
We enter section 01-engine.
We enter the basic settings (04).
In the damper adaptation we select 060 for cars with electronic damper control, and value 098 for cars with cable-controlled damper.
Let's start the adaptation.
We are waiting for the “ADP RUN” entry to appear on the screen and the subsequent “ADP OK” entry.
We return to the basic settings.
Turn off the ignition. Adaptation is complete.

Mitsubishi Lancer IX throttle adaptation:

Warm up the car engine.
We connect the ScanDoc scanner to the diagnostic connector. IAC values = 0.
We artificially restore the thermal gap in the damper (for example, we use a mixture of grease and waste oil).
We start the engine and wait for the steady idling speed to be established.
In the scanner, we launch the “Sas mode” mode and adjust the position of the IAC during adaptation.
If the engine stalls when turning on the “Sas mode” mode, then unscrew the IAC screw to increase the engine speed to XX;
We set the speed within 750-800 rpm.
During adaptation, the IAC steps are set to 4-7;
We forcibly complete the adaptation process and turn off the engine.
We start the engine and check the IAC. If the adaptation was successful, then the IAC steps will be 27-28.

Adaptation of remote sensing on Audi A4:

We warm up the engine to t=800C and turn off the car. Then we connect the cable to the diagnostic connector and after turning on the ignition, launch the diagnostic program (VAG-COM).
We enter section 01-engine.
We enter the “Adaptation-10” section.
On channel 00, press the “read” button.
Save the result and return to factory settings.
Enter the basic settings (04) and go to the measurement mode.
Enter channel value 098, start adaptation.
We are waiting for a message about the completion of the adaptation process.
We return to the original section. Close the program and disconnect the cable.

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Resetting ECU Adaptations Using a Chevrolet Explorer

I have already described this process in the section on self-diagnosis of Chevrolet. But let's repeat here too.

What do we need for this:

Laptop
Diagnostic adapter
Diagnostic program, for example, Chevrolet Explorer

How to download, install and configure the program, as well as install the adapter drivers step by step and in detail, is described in the Chevrolet Diagnostics section

We connect the adapter to the diagnostic block and to the laptop

Launch the Chevrolet Explorer program and turn on the ignition.

We connect to the engine control unit, choosing from the list the one that is installed on your car

Attention! Adaptations are reset with the ignition ON and the engine STOP. In some cases, for vehicles equipped with an MR-140/HV-240 ECU, it is necessary to perform “Learn DPKV”. After clicking on the “Learn DPKV” button, instructions with the necessary actions will be displayed on the screen.

Go to “Service” – “Service Functions” – “Reset Adaptations”

Confirm the action

Result

That's the whole simple process that takes no more than a minute of time.

When should you not perform remote sensing adaptation?

It is worth noting that it is appropriate to carry out the above procedures using software and special diagnostic equipment in the event of a failure of the damper settings. It does not matter whether the electronic parameters are broken or the mechanical settings of the equipment are lost.

If the operation of the throttle is impaired due to wear, then it is more advisable to think about repairing or replacing the part. If suddenly, after the steps described above, adaptation does not occur, it is worth checking the motor responsible for opening/closing the damper. There may not be enough power for the node to operate properly.

Using the example of adapting the throttle valve of the above-mentioned cars, we can conclude that absolutely all cars are characterized by some common processes.

For example, cleaning the damper body inside and outside before starting adaptation is necessary for any make of car.

The only difference is that in some cars the damper is adjusted using a cable, and in others using electronics. This difference will manifest itself in the choice of adaptation parameters.

Adjusting opening angles in Mitsubishi Lancer

My secret How to adapt the throttle Complete instructions

The air valve should be open and the throttles should turn freely. Permissible gaps range from 0.06 mm. replacing front brake pads on a Mitsubishi Lancer 9 - The adjustment is carried out at low idle speed. The Lancer engine will gradually warm up to 90 degrees and only then will it be possible to tighten the screw, which will change the composition of the combustible mixture (two and a half turns are enough to enrich it). After starting the engine, you should make sure that there is minimal throttle opening, but the engine itself is running well. Then, using the adjusting screw, we achieve the highest speed (the throttle must be open). In this way, we ensure that even after sharply opening the throttle, the engine will still run and quickly gain speed.

After properly carried out repairs or preventive maintenance, you will only need to make sure every 15-20 thousand kilometers to ensure that excess dirt does not accumulate and that the Mitcubishi Lancer 9 throttle valve is working properly. This will help you save money and not spend money on new spare parts for a long time.

Do you still think that diagnosing a car is difficult?

If you are reading these lines, it means you are interested in doing something in the car yourself and really saving money, because you already know that:

Service stations charge a lot of money for simple computer diagnostics
To find out the error you need to go to specialists
The services use simple impact wrenches, but you can’t find a good specialist

And of course you are tired of throwing money down the drain, and driving around the service station all the time is out of the question, then you need a simple CAR SCANNER ELM327, which connects to any car and through a regular smartphone you will always find the problem, turn off CHECK and save a lot of money.

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Resetting and setting service intervals

In more or less modern cars, it is possible to set the mileage before service, when the tidy will remind the driver to go and change the oil. The standard interval is 15,000 km.

Resetting the service interval

Firstly, resetting it after changing the oil with VAG-COM goes like this:

Login to Dashboard
Adaptation button
2nd channel
Save existing value

Setting the service interval

And setting the intervals (depending on the car!, instructions are given for common A4 8E bodies):

Login to Dashboard
Adaptation button
Channel 42 (minimum value, thousand km)
Channel 43 (maximum value, thousand km)
In each of these channels save the required values

Accordingly, if, for example, you write the number 5 in the 42nd channel, and 7 in the 43rd channel, it turns out that after 5 tkm the indication “2 tkm before service” will light up, and at 7 tkm a persistent recommendation to go to the service will appear

Additional service display settings

On those devices where In1 or In2 (ln1 ln2) lights up:

In a vag coma:

Block 17 - toolbar (instrument)
Button 10 - Adaptation
Channel 05 - OIL in thousands of kilometers
Channel 06 - In1 in thousands of kilometers
Channel 07 - In1 in tens of days
Channel 08 - In2 in thousands of kilometers

That is, an example: we go to channel 6 and set it to 10. 10 means that the next time In1 will light up after 10 thousand km.

We thank MrKrabs for the second part of the description.

Preparing for throttle adaptation

Throttle valve adaptation using the VAG-COM program
The throttle valve adaptation procedure is performed using the VAG-COM program. Before the procedure you must:

Download free software and drivers;
Turn on the ignition;
Connect the cord to the car;
Launch the program on your laptop;
Perform setup (click test);
When a message appears that the adapter is connected to the car;
Select apply.

After this, adaptation can be carried out directly. It is carried out so that the ECU uses sensors to determine the position of the throttle valve (“fully open”/“fully closed”).

When might it be necessary to adapt the throttle valve in a car?

When the voltage on the car battery critically decreases (in case the battery is removed from the car or is completely discharged);
When a new ECU was disconnected or connected in the car;
If the throttle valve in the car was cleaned, which meant removing it and reinstalling it;
When installing a new gas pedal in a car.

In all the examples given, it is necessary to diagnose and adapt the throttle valve in VAG family cars, since disconnecting these elements from the ECU sensors resets the throttle parameters and to continue the correct functioning of the throttle valve, it must be re-adapted.

Quite often you can find cases after customers contact VAG car repair service centers that do not adhere to the rules and do not adapt the damper, after which car owners are faced with problems of excessive fuel consumption by the car and a decrease in its dynamics when driving.

Service center employees explain this by saying that the throttle valve is updated and adapted automatically, but often this does not happen and it is necessary to adapt it using the Vasya Diagnostic program.

The procedure for software adaptation of the throttle valve

To start programming, we need to connect the VCDS diagnostic cable to the car connector and our computer, after which we turn on the computer and launch the Vasya diagnostic program.

Select block 01-Engine [01– Engine] in the program menu
Next, select the basic settings in the program - 04: Group 060: : Group 060

3. After this, execute the command: [Go!] with the inscription “Basic Settings: OFF” (Basic settings: Off) it will appear under the VCDC logo 4. Now use the [ON/OFF/Next] button activate “Basic Settings: ON” under the VCDC logo. The ADP RUN message should appear in the program window and the throttle valve will complete a full cycle (from its open position to its fully closed state).

5. Now you need to wait about 30 seconds after ADP OK appears and only after this wait press the [Done, Go Back] button.

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How to adapt the throttle on passenger cars with a cable-operated damper (vehicles without an electronic gas pedal):

Turn the car's ignition key to the ON position, but do not start the car;
[Select] [01 - Engine];
;
Group 098 (Note: Some SIMOS and Marelli ECUs use group 001, such as on ADY and AEE engines);
[Go!];
.

ADP RUN should now appear on the top display on the right side. You can perform software adaptation of the throttle valve only after switching to the basic settings mode. You will be able to notice changes in parameters and you can even hear the throttle valve moving, going through a full cycle during the first few seconds, after completing the program cycle it will stop.

You need to remain in Basic Settings mode for approximately 30 seconds. 7. Now press the button and you're done. You should not touch the car's gas pedal until you are sure that the car's engine is not running when you do this!

Recommendations

Comments 62

I understand that it is necessary to open the floor of the injector?

No, everything is extremely simple. Remote control mounting - 2 nuts in total

How long is the nut?

The last picture is very interesting. It turns out that the lower pipe goes from the throttle to the small crankcase breather? And the upper pipe goes from the throttle to the receiver, as I understand it?

Yes, the low ventilation and adsorber pipes have been swapped. This was done on the repeated recommendation of Drayvovites.

I don’t have an absorber (Can’t this modification be done without it?)

They suggested that I transfer the low ventilation pipe to a free fitting on the plastic intake manifold. But I wasn’t impressed with the piece itself - it’s a little poorly made, without wedge-shaped chamfers

Somehow, in the open spaces of the drive, I already read about a similar modification, more precisely about the transfer of the low crankcase ventilation hose... Since there is no absorber, I’m thinking. And if you just transfer the lower throttle pipe into the engine where there is a small breather or whatever it is called... And transfer the upper pipe from the throttle to a plastic receiver?

I won’t say anything intelligible, it’s not my topic. Highly recommended - did it. It didn't get any worse.

I fucked with it... the first time I figured it out, but the second time I didn’t think about it... but it started spinning due to vibration and more air began to flow... as a result, the edges on the damper were worn out and it began to suck a lot of air. had to change

It turned out to be a good thing)

Test. If the space allows, another grower would not be a problem.

The place is at its limit. There will be no grower

Can you tell me more about the initial opening angle? I just have that hemorrhagic problem with him. Once upon a time, when the 54th damper was installed, one mechanic decided to adjust it and climbed where it was not necessary. It seems like the angle was set, but something was wrong.

This is only 1-2 degrees. I made sure that the damper was in the stop position, that is, completely closed, but not jammed. Started it up and warmed up the engine well. Tracking IAC steps - reg. Use the screw to slightly open the damper until the steps are reduced to 25-35 from 45-50. That’s all the adjustment. The TPS voltage varies within 50-100 mV no more. The initial position of 0% is retained. During the adjustment process, it is worth turning off the engine, waiting for the ECM to turn off and starting it again - to perform adaptation to “0” TPS

I did this, then the gap turns out to be very large and at 25-35 steps the revolutions begin to float. Stable only from 35-45. Moreover, if the gap is too large, the traction deteriorates. Those. It feels like the motor is wrapping an elastic band around itself. I reduce the gap, everything is ok, but the steps reach 50.

I have no complaints about stability. But the failures when releasing gas have disappeared

Those. There is no specific panacea in our cars?! For example, Ford has a gap of 0.05, I installed the same on ours, it seems to work, but it doesn’t seem to work.

Moreover, the reason for the appearance of the described failures is still unknown. They just appeared in May last year. Especially annoying in rainy weather with a loaded generator.

Throttle learning idle

After flushing the unit or reflashing the ECU, the throttle valve should be trained to idle. To do this, fulfill the following conditions:

check the voltage on the battery with the engine off, it should be at least 12.9 V;
the coolant temperature should be in the range from 70 to 100 degrees;
the steering wheel must be in a neutral position;
The gearbox oil must be warmed up;
all electrical consumers are turned off;
automatic transmission handle in position P.

Failure to comply with the above requirements will lead to incorrect operation of the engine, so they must be followed. After warming up the engine, you must:

turn off the ignition for 10 seconds;
make sure that the accelerator pedal is in the up position;
turn the key to the ON position for 3 seconds (do not start the engine);
Press the gas pedal all the way 5 times within 5 seconds and release it for the last time;
after 7 seconds, press the gas pedal all the way and wait until the “CHESK ENGINE” display lights up continuously;
After pausing for 3 seconds, release the gas pedal.

Try to start the car, the attempt can be repeated several times. During stable operation, rev the throttle several times and the idle speed should return to the acceptable range.

The procedure for learning the throttle using a PC and car programs has its own specifics, depending on the brand of car, etc. Therefore, it makes no sense to describe the entire process in detail. But first you need to install special software on your PC, for example, VAG-COM for a VAG car group (or other) and drivers. The following is the standard connection order for all:

turning on the ignition;
connecting the PC to the car diagnostic connector with an information wire;
launching software on a PC;
conducting a test;
receiving information about readiness for further work - the inscription: “The adapter is ready for work.”

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Following a special algorithm, you will be able to coordinate the remote control and the ECU in the “throttle fully open/fully closed” modes for cars with both an electronic and mechanical gas pedal. In this case, the throttle valve training is carried out when the car is warm and the above requirements are met.

Initial conditions

Mitsubishi Lancer 9 how to clean the throttle valve
Before starting operations, make sure that all the conditions listed below are met.

This process is canceled if any of the conditions are not met at the time of execution.

The battery voltage is not lower than 12.9 at idle.
Temperature from 70 to 99 degrees.
Selector in P or N (automatic transmission).
Electrical loads are turned off (air conditioning, headlights, heated rear window, cars with Eurolights - turn on the dimensions).
The steering wheel is in the middle position - the wheels are straight.
Before training, drive a car for 10 minutes.
The radiator fan should not work.
Vehicle speed: The vehicle is stationary.
Gearbox: Warm up.

Adaptation of climate control flaps

The question often comes up about how to adapt the climate dampers on VAG cars.

Everything is extremely simple:

you need to go to the Climate block (0,
select the “Basic settings” mode,
open channel 001,
Be sure to wait until all numbers become “000”.

The climate can be turned on or off - it makes no difference.

01 Idle speed
02 adjustment of the mixture composition as the load increases. enrichment of the mixture under load when the shoe is pressed sharply
03 adjustment of the mixture composition when the load decreases. enrichment of the mixture when you gently press the slipper or when you slow down
04 Enrichment in “after start” mode
05 Enrichment in warm-up mode
06 lambda regulation. Sets the speed of the controller's response to a change in the signal from the lambda, larger values - the reaction is faster, smaller values - the reaction is slower
07 additional speed limiter compensation. Sets the limit by adding 1 km/hour
08 is responsible for enrichment in the “start” phase
09 ignition timing compensation. Adjusts angle in 0.75 degree increments throughout the entire RPM range
10 basic fuel adjustment factor (works in all modes)
11 Exhaust gas recirculation (EGR/AGR)
12 boost pressure setting, only for turbo cars, larger values increase the boost pressure, smaller values decrease the boost pressure
13 not used
14 additional torque compensation at idle. Regulates the engine load at idle. Large values increase the idle load specification, smaller values decrease it.

Sources

https://audi-manuals.ru/remont-article/audia6/542-adaptaciyadrosselyaa6
https://avto-cool.com/remont-avtomobiley/obuchenie-drosselnoy-zaslonki
https://poloavto.ru/ekspluataciya/adaptaciya-drosselnoj-zaslonki-polo-sedan.html
https://natapku.ru/ustrojstvo/adaptaciya-drosselnoy-zaslonki.html
https://autodont.ru/fuel-system/butterfly-valve/adaptaciya-drosselnoj-zaslonki-vag-com
https://allvag.ru/adaptacziya-drosselnoj-zaslonki-na-vag

Problem with idle float when starting on cold due to sticking of throttle 21127 and 21129.

Dear friends, today I’ll tell you about my experience in resolving problems with the throttle assembly. Very relevant, especially for owners of 21129 engines.

By the way, I have the firmware with the problem already fixed.

The occurrence and solution at the plant level in the case of the M74.5 ECU, it was like this. When the ignition was turned on on old versions of the ECU firmware, the micro-calibration time of the Throttle Unit (hereinafter referred to as the remote control) was, well, long, due to the fact that the owner did not wait for a 10-second pause during the ignition, this error occurred.

This problem can be fixed with firmware.

But not everyone, for example, in cars of 13-14 years, the remote control motor was of an old model, had a certain moment of jamming, then in 15 the remote control became “modernized” and this error went away altogether.

Firmware versions that have this problem:
I427DB02 I427DC03 I427DD04 I427DF04 I427DG05 I427GA01 I427GB02 I427GC03 I427GD04 I427GE05 I427GF06
Firmware versions that do not have this problem:
I427GG07 I427GKA1 I427GKA 2
Here is a photo of how to find out your firmware version, the firmware is interchangeable, at least install the oldest one on the new unit, at least the newest one.

Problem with floating XX when starting on cold

The car sits overnight, in the morning you start the revs, when it warms up, the revs begin to jump, +-300 revs, with the probability of stalling, you need to press the gas pedal lightly and everything returns to normal.

Starting the engine, the rpms are 1200, they begin to jump between 500 and 1400 and hang at 700.

Related problems:

— Jerking during a smooth start in first gear — Thoughts in part-load mode — The feeling when accelerating at 50% throttle that sometimes “as if you’re holding your ass”

How to diagnose physically: when disassembling the throttle, remove the plastic gear, twist the motor gear, if it rotates tightly or sticks, then the manual is for you.

It is necessary to remove the remote control, clean the valve (by the way, it was clean) with carburetor cleaner, then remove the cover, unscrew the motor and wash everything.

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